Shock-absorber for vehicles.



H. C. HEBEG.

SHOCK ABSORBER ma vEHcLES.

.APPLICATION FILED FEB. 18 i913.

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/f Ummm mieseneem oiihlllh@ @hilt/Q EENEY C. HEBIG, 0F NEW- YORK, N. Y., ASSIGNQR '1.0 'WIL'LAM P. HAMMONB, v P-SSAIC, NEVI JERSEY.

snocios'nsorrsne :con vnnrcrns.

Specification of Letters Patent.

letented Jain. 2, iwi?.

Application filed February le, 1918. Serial Ifo. $29,116.

To all whom it may concern: i

Be it known that l; hner C. Heere, e citizen of .the United States, and a resident of the city'lof New York, borough .olli/Ianhattan, in the county and State of New York, have invented certain new and useful lmprovementsin SlioclgA-bsorbers J01' Vehicles, of' which the'following is a ullf Iconstruction, which' can be reedily applied to the vehicle, and which embodies `novel features or" construction whereby it will opcrate in en effective manner Ato absorb sudden shocks and jars und prevent excessive rebounding of the vehicle bodyu A further object' of the invention is to provide a shock absorber which embodies novel featuresof construction whereby the resistance thereofv to the rebound of the vehicle body can be readily adjusted es may be found necessary.

l'Vith these and other objects in view, the invention consists in certain novel combinetions and arrangements of the parts as Will more fully appear es the description proceeds, the novel features thereof being pointout in the appended claims.

lD or a full understanding of the invention,

reference is to be hed to the following description and accompanying drawings, in 'winch Figure l is :i vertical through a shock absorber constructed in accordance with the invention. Fig. 2 is a side elevation of the same. Fig. 3 is a side elevation of a modilied forni of the shock abs ,o bcr, portions being broken away and shown in section to more clearly illustrate the construction thereof, and Fig, i cis an sectional view end View of the modied' form of kshock ebsorber,' portions being broken away andA shown in section. l y

Qorresponding and-like parts are referred to in the following description end indicated in all the-views of the drawings by the member 2 is connected to aport e of the ve-v hicle which-is substantially rigid with the running gear. The two members l and 2 are hollow in construction end substantially cylindrical shape the' open end of the member 2 being received and slidably 1 ounted within the open end of the member 1. A coil spring 5 is mounted within the hollow telescoping members l and 2, the upper end of the coil spring bearing against the head l1 which closes the upper end of the telescoping niember 1, while the lower end or" the coil ,spring, bears against the head 2 which closes: the lower end of the member 2. This springA tends to force the members l and 2 apart and is placed under compression when the vehicle body is moved down-v wardly toward therunn-ing gear.

For the purpose of enabling theshock absorber to be readily mounted in position upon the vehicle, the closed end la ofthe member' 1 vis provided with a stem G which terminates in a bell 7, the said ball being loosely received Within a socket 8wl1ich is adapted to be permanently connected to the vehicle part In a similar manner the closed lower end 2 of the telescoping member 2 is provided with :t stem 9 termlnating in a ball 10 which is loosely received Within a socket ll adopted to `be permanently connected in amy suitable manner as by means oi' the clamps l2 to the vehicle part 4.

The upper ond of the telescoping member 2 is provided upon the exterior thereof with an annuler groove or recess within which suitable packing 13 is arranged, the said pucking boingadopted to/frictionally engage the eol interior of the member 1. lt will also be observed that the lower end ot the member 1 is formed with a series of spring arms 14which serve to frictionally engage the exteriorI or' 5 the member 2 for the purpose ot retarding the telescopic movement of the members. These spring arms 14 may be'conveniently formed by longitudinally slitting the free v'end of the member 1, and the iiuiner faces of the sprin arms are recessed toL'receive suitable pac ring 15 which frictionally bears against the member 2. A collar 16 is applied to the' exterior of the telescoping member 1 and riveted or otherwise permanently secured 154 thereto, the said collar being. rovided with a series of downwardly exten ing spring tin-v gers 17A which bear against the spring arms 14 of the member 1 and tend to force the said' spring arms inwardly into ope ative' position. These spring lingers 15 are preferably arranged alternately with respect to the spring arms 14,A as indicated more clearly by Fg.`2, and intermediate portionsI of the said spring fingers 15 are bowed outwardly. The exterior of the collar 16 and also the upper ends of the spring lingers 17 are threaded for .the reception of an adjusting nut 18. -By screwing this adjusting nut 18 downwardly into engagement with the out- 0 wardly bowed portions oi the spring fingers 17, the tension of the spring fingers can be increased, so that the spring fingers will bear with greater force upon the spring arms 14 and cause the said spring arms 14 to pro- 5 duce a more effective i'rictioual engagement with the, telcscoping member Q. jam nut 19 may `also be threaded upon the collar 1G for locking the -adjusting nut 18 against movement after it has once been set to produce the desired tension in the spring lingers .17. The frictional resistance, to the telescoping movement ol the members l and .2 can thus be adjusted as may be found rwcessary, and this frictional resistance will tend to re` tard the up and down n'ioi'ement of the vehicle frame with respect to the running gear so as t'o absorb shocks and jars and prevent excessive rebounding of the, vehicle body. rlhe lower closed eml 2 of the telescoping 0 member 2 may be, provided with suitable air openings 2() to prevent tlie. interl'erem-e of atmospheric pressure 'with' the. operation ol' the device.

A modification is shown in Figs. il' and 4` .5 in which the numerals :2l designate a pair ol' cylinders which are arranged side by side and rigidly connected io each other in some suitable manner as by means ol' the bracket 22. A piston lil is slidabl)Y mounted within each ol the cylinders 2l so as lo move treeljy up and down within the. same. the said pisA ton jfl and cylinders 2l constituting in effect telescoping members. liston rods 24 are connected to each ol the pistons 2?, and extend upwardly through the closed upper ends 2la of the cylinders, the upper ends of the4 piston rods 24 being slotted at 25 and connected by a pin 26 to which the lower ve hicle spring member 27 is attached. Projecting from each of the cylinder heads 21 :is a housing 28' which surrounds the slotted portion Q5 of the piston rod 24. The housings 28 ot' the two. cylinders 2l are connected by a transverse pin 29 which passes loosely through the, slots of the piston rods 24, the said pin having the upper vehicle springl 30 attached thereto.

A compression spring 31 which surrounds i the piston rod 24 is arranged Within each of the cylinders 21 and interposed between the cylinder head '21 and the piston' 23. Fitted against the lower face of cach of the pistons 23 is a plate 32 which is provided at tlf-ieperi phery thereof with a spring flange 33 adapted to bear against and frictionally engage the interior walls of the cylinder. This friction member 33 may be longitudinallyv slotted to provide the spring arms 33 which correspond to the spring arms 14 of the previously described embodiment of theinvention. A second plate 34 is alsocarried by the piston 23, a packing member 35 being shown in the present instance as interposed between the plates 32 and 34. The periphery of this plate 34 is provided with the downwardly extending spring lingers 36Y which have intermediate portions thereof bowed inwardly, the extremities of the spring fingers bearing against the spring arms 83 to force the same frictionally against the cyl inder Q1. The piston rod 24 extends downwardly below the piston 23 where it is threaded to receive a. truste-conical nut 37. The inclined side walls ot this nut 37 engage the inwardly bowed intermediate porlions of the spring arms 343 so that by adjusting the nut upon the piston rod the tension in the said spring lingers 36 can be ad justed as desired. .l am nuts 33 are provided l'or locking the 'l'rusto-conical nut 3T in adjusted position upon the piston rod :'24, and similar jam nuts 39 are provided for holding the plates 32 and 34 in proper position upon the piston 23.

ln the operation of the device, it Will be obvious that as the vehicle body moves up and down with respect to the running gear the piston ill will be caused to slide up and down or telescope within the cylinders 21, 'lhe telescopic movennint will. however, be resisted by the lrictional engagement of the spring arms :lila with the cylinder, and the intensity ol' this lrietional engagement can be adjusted through the medium ol the nut :3T as maxI la l'ound ma'essary. lloth forms ol' ihe inventizm thus operate in a similar manner t'o retard the back and forth movement of the teleseoping members and to thereby pia-.vent excessive rebounding of the vehicle body.

y other member, .I bowed portion oi' spective vehicle tbe invention,

lilaving thus described to secure by what l claim as new and desire Letters atent, is

l. A shock absorber forvehicles including a pair of slidablyconnected members, means for connecting said members with the respective vehicle parts, friction means carried by one of said members and engaging the opposite member, said friction means including an annular member, one extremity of which is ixedly mounted to one of the members and having tbe opposite extremity terminating in bowed-sprincr fingers fric tionally engaging the other o said members, and means for adjusting the tension of the sprin r fingers. i

shock absorber for vehicles including a pair of slidably connected members, means i-or connecting the said members with the .respective vehicle parts, friction means comprising a cylindrical part provided withua series of spring arms carried `by one of said members and engaging the opposite member, spring ngers engagin the said friction means and 'formed wit and means engaging the bowed portion of the spring fingers to regulate the tension therein.

A shock` absorber for vehicles, includinga pair of slidably connected cylindrical members, means for connect-inv the said members with the respective velicle parts, a cylindrical part terminating in aplurality spring arms carried by one of the said members and frictionally engaging the op poNL e member, spring fingers engaging the said spring arms, and means 'for adjusting tbe tension in the spring vEnger to increase or decrease the friction. y

d, ri. shock absorber for vehicle parts in cluding a pair of slidabiy connected members, means for connecting saidmembers "with the respective vehicle parts, a spring arm, one' end of which is iir'redly mounted upon one oi said spring members, said spring arm being bowed intermediate of its extremities and a free extremity of vsaid a bowed portion,'

arm being in irictional engagement with the and means engaging the the spring arm to regulate tbe tension thereof. f

Ii sboclr absorber for pair of siidably connected members, means for connecting the said members with the respective vehicle parte, an annular series of spring arms carried by one of the members and engaging the opposite member, an annu lar series ci spring lingers engaging the said spring arms, and means Jror adjusting tbe tension in the said spring fingers;

(S. A, shock absorber for vehicles including pair of slidably connected members, means connecting the said members with the rcparts, an annular series of spring arms carried by one of the members vehicies including and engaging the opposite member, an annular series of Aspring fingers engaging the spring arms and formed with bowed portions, and a nut member mounted for engagement with the ,bodyportions of the spring fingers so that the tension of the said spring fingers can be regulated.

. 7. A shock absorber for vehicles including a pair of telescoping members, means for connecting the said members with therespective vehicle parts, an annular' series o springarms carried by one of the telescoping members and frictionally engaging the opposite telescoping member, an annular series of spring fingers engaging the said spring arms and tending to force the same into operative position, and means for adjusting the tension of the spring fingers to decrease or increase the frictional action of the spring arms.

8. A shock absorber for vehicles including` a pair of telescoping members, means for connecting the said members with tbe respective vehicle parts, anannular series of spring arms carried by one of the telescoping .members and frictionally engaging the op telescoping member, a collar mounted upon the first mentioned telescoping member and formed With spring fingers which. engage the spring arms and are formed with bowed portions, and an adjusting nut threaded upon the collar and adaptedto engage the body portions of the spring fingers posite l to regulate the tension thereof. 'i

9. A. shock absorber for vehicles including a pair of hollow telescoping members, a spring mounted Within the hollow telescoping members, means for connecting the said telescoping members with the respective vehicle parts, an annular series of spring arms carried by one of the telescoping members and frictionally engaging the opposite telescoping membega series of spring fingers carried by the rst mentioned telescoping members and engaging the spring arms, the

said spring fingers being formed Withv body portions, and an adjusting nut adapted to engage the bowed portions of the spring fingers to yregulate the tension thereof.

i0. A shock absorber for. vehicles'including a'. pair of telescoping members, means 'for connecting the said members'with the respective vehicle parts, one of said members being provided with an annular series of spring arms for rictional engagement `with the opposite telescoping member, said first telescoping 'member also carrying an annular ringprovided with a series of spring members which bear upon and engage the spring arms with tension and adjusting means carried by said iirst telescoping member for adjustingfthe tension of the spring members.

l1. A shock absorber for vehicles includmeans for adjusting the degree of fiictionai adherence between the annular series of 10 friction devices and the coperating telescoping member.

HENRY C. HEBIG. Witnesses:

WILLIAM P. HAMMOND. IRENE MULGAY. 

